<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>jquery实现弹出登陆窗口</title> 
<script type="text/javascript" src="js/jquery-1.11.2.min.js" ></script>

<script> 
jQuery(document).ready(function($) { 
$('.login').click(function(){ //jquery的点击事件 
$('.body-color').fadeIn(100);//全局变得黑的效果，具体的div就是theme-popover-mask这个 
$('.hide-body').slideDown(200);//将隐藏的窗口div显示出来 
}) 
$('.close-window .close').click(function(){ 
$('.body-color').fadeOut(100);// 
$('.hide-body').slideUp(200);//将显示的窗口隐藏起来 
}) 
 
}) 
</script> 
</head> 
<!-- 整个弹出框分为三个主体，一个是关闭的div 一个中间主要显示的div 最后一个就是增加其他内容的div --> 
<body> 
<div> 
<!-- 这就是点击事件的触发，其中 theme-login是可以修改的 --> 
<a class="login btn" href="javascript:;">点击查看效果</a> 
</div> 
<div class="hide-body"> 
<div class="close-window"> 
<!-- 关闭窗口，也就是触发关闭div的事件--> 
<a href="javascript:;" title="关闭" class="close">×</a> 
<h3>登录 是一种态度</h3> 
</div> 
<!-- 中间主体显示div 可以增加其他的样式--> 
<div class="login-body dform"> 
<form class="signin" name="loginform" action="" method="post"> 
<ol> 
<li><h4>你必须先登录！</h4></li> 
<li><label for="username">用户名：</label><input class="ipt"
type="text" id="username" value="lnc" size="20" /></li> 
<li><label for="password">密 码：</label><input 
class="ipt" type="password" id="password" value="***********"
size="20" /></li> 
<li><input class="btn btn-primary" type="submit" name="submit"
value=" 登 录 " /></li> 
</ol> 
</form> 
</div> 
<!-- 底部的div --> 
<div class="bottom"> 
<hr> 
<pre>底部部分文字显示哦</pre> 
</div> 
</div> 
 
<div class="body-color"></div> 
 
</body> 
</html> 
 
<style> 
.btn { 
position: relative; 
cursor: pointer; 
display: inline-block; 
vertical-align: middle; 
font-size: 12px; 
font-weight: bold; 
height: 27px; 
line-height: 27px; 
min-width: 52px; 
padding: 0 12px; 
text-align: center; 
text-decoration: none; 
border-radius: 2px; 
border: 1px solid #ddd; 
color: #666; 
background-color: #f5f5f5; 
background: -webkit-linear-gradient(top, #F5F5F5, #F1F1F1); 
background: -moz-linear-gradient(top, #F5F5F5, #F1F1F1); 
background: linear-gradient(top, #F5F5F5, #F1F1F1); 
} 
 
.login-body { 
padding: 60px 15px; 
color: #444; 
height: 148px; 
} 
 
.ipt { 
border: solid 1px #d2d2d2; 
border-left-color: #ccc; 
border-top-color: #ccc; 
border-radius: 2px; 
box-shadow: inset 0 1px 0 #f8f8f8; 
background-color: #fff; 
padding: 4px 6px; 
height: 21px; 
line-height: 21px; 
color: #555; 
width: 180px; 
vertical-align: baseline; 
} 
 
.dform { 
padding: 80px 60px 40px; 
text-align: center; 
} 
 
.signin { 
margin: -50px -20px -50px 90px; 
text-align: left; 
font-size: 14px; 
} 
 
.signin h4 { 
color: #999; 
font-weight: 100; 
margin-bottom: 20px; 
font-size: 12px; 
} 
 
.signin li { 
padding-left: 80px; 
margin-bottom: 15px; 
} 
 
.signin ol { 
list-style-type: none; 
} 
 
.signin li strong { 
float: left; 
margin-left: -80px; 
width: 80px; 
text-align: right; 
line-height: 32px; 
} 
 
.signin .btn { 
margin-bottom: 10px; 
} 
 
.signin p { 
font-size: 12px; 
color: #999; 
} 
 
.theme-desc,.theme-version { 
padding-top: 0 
} 
 
.body-color { 
z-index: 9998; 
position: fixed; 
top: 0; 
left: 0; 
width: 100%; 
height: 100%; 
background: #000; 
opacity: 0.4; 
filter: alpha(opacity = 40); 
display: none 
} 
 
.hide-body { 
z-index: 9999; 
position: fixed; 
top: 30%; 
left: 40%; 
width: 1000px; 
height: 618px; 
margin: -180px 0 0 -330px; 
border-radius: 5px; 
border: solid 2px #666; 
background-color: #fff; 
display: none; 
box-shadow: 0 0 10px #666; 
} 
 
.close-window { 
border-bottom: 1px solid #ddd; 
padding: 22px; 
position: relative; 
} 
 
.bottom { 
margin-top: 180px; 
} 
 
.close-window .close { 
float: right; 
color: #999; 
padding: 5px; 
margin: -2px -5px -5px; 
font: bold 14px/14px simsun; 
text-shadow: 0 1px 0 #ddd 
} 
 
.close-window .close:hover { 
color: #444; 
} 
</style>